Modeling and Calculating Vibration Characteristic of Car Body Assembled and Manufactured in Vietnam

Abstract:

In recently years, Automotive industry in Vietnam is a fast growing sector, mainly reliant on domestic produces, assembly and sales. There are some details of cars that have been modeled, calculated to research and fabricate. Body vibration of the vehicles is one of the criteria to evaluate quality in the process of manufacturing and assembling automobiles. There are so many factors affecting on vibration of vehicles, in that body structure is one of the main causes. Up to now, automobiles manufactured and assembled in Vietnam have not yet had specific evaluations and standards on vibration. Determination of characteristic body vibration is a main part to reduce sound and vibration. In this paper, the modelling and calculating the body’s characteristic vibration of cars manufactured, assembled in Vietnam was researched. The body structure is designed by 3D model using commercial Catia Software. The model was transformed from Catia software to Hypermesh software, using finite element method to simulate. The calculation results of 25 measurement characteristic vibrations whose frequency is in range of 22.77 Hz to 97.21 Hz. The results are shown that, characteristic vibration of state 1 and 2 significantly influence the noise of the body. This is also the basis for optimal analysis of the body structure to control the vibration and noise of automobiles.

• Periodical: Applied Mechanics and Materials (Volume 889)
• Pages: 315-321
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.889.315
• Online since: March 2019
• Authors: THANH CONG NGUYEN
• Keywords: ANSYS/LS-DYNA, Bus Body Frame, Design Process, Passive Safety

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